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Title: Microstructure evolution of hot-deformed Nd-Fe-B anisotropic magnets

The microstructural evolution of hot-deformed Nd-Fe-B magnets in each stage of hot-deformation process was studied using transmission electron microscopy and three dimensional atom probe (3DAP). The anisotropic growth of initially isotropic grains in rapidly solidified alloy occurs by annealing without pressing. 3DAP analyses showed a higher concentration of rare-earth elements in the intergranular phase parallel to the flat surface of platelet shaped Nd{sub 2}Fe{sub 14}B grains compared to that in the intergranular phase at the side of platelets.
Authors:
;  [1] ;  [2] ; ;  [1] ; ;  [3]
  1. Elements Strategy Initiative Center for Magnetic Materials, National Institute for Materials Science, Tsukuba 305-0047 (Japan)
  2. (Japan)
  3. Daido Steel Co. Ltd., Nagoya 457-8545 (Japan)
Publication Date:
OSTI Identifier:
22273763
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; ANNEALING; COMPARATIVE EVALUATIONS; CONCENTRATION RATIO; DEFORMATION; GRAIN GROWTH; IRON BORIDES; MAGNETIC MATERIALS; MAGNETS; MICROSTRUCTURE; NICKEL COMPOUNDS; SURFACES; TRANSMISSION ELECTRON MICROSCOPY